#647C57
Closest named color: Dark Sage (#598556). oklch(55.7% 0.062 134.9), rgb(100, 124, 87).
Aa
White text reads best on this color (4.60:1).
About this color
#647C57 is a medium-dark, muted green. In OKLCH its lightness is 56%, its chroma 0.062 and its hue 135°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Sage (#598556), ΔE 0.030 away. White text reads best on it, at 4.60:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.062) |
| Temperature | in between |
| Nearest name | Dark Sage (#598556) |
| Black text | 4.56:1 |
| White text | 4.60:1 |
Values
| HEX | #647C57 |
| RGB | rgb(100, 124, 87) |
| HSL | hsl(99, 18%, 41%) |
| OKLCH | oklch(55.7% 0.062 134.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #647C57 | 4.60:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #647C57 | 4.56:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #647C57 text on white | 4.60:1 | AA | Lc 72.0 | Content text, not long reading |
| #647C57 text on black | 4.56:1 | AA | Lc -29.7 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F4F6F3
oklch(97.1% 0.004 134.8)
-
Step 100
100
#E7EBE6
oklch(93.6% 0.008 139.4)
-
Step 200
200
#D5DCD1
oklch(88.6% 0.017 133.8)
-
Step 300
300
#B9C5B3
oklch(80.9% 0.028 135)
-
Step 400
400
#95A78B
oklch(70.6% 0.045 134.3)
-
Step 500
500
#7B926F
oklch(63.2% 0.057 135)
-
Step 600
600 (this color)
#647C57
oklch(55.7% 0.062 134.9)
-
Step 700
700
#536847
oklch(49.1% 0.057 134.5)
-
Step 800
800
#44553A
oklch(42.7% 0.048 134.3)
-
Step 900
900
#394632
oklch(37.6% 0.037 134.8)
-
Step 950
950
#22291D
oklch(27% 0.024 132.5)
#647C57 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #7F7655 | 0.041 |
| Deuteranopia (no green cones) | #7B7459 | 0.040 |
| Tritanopia (no blue cones) | #647972 | 0.044 |
| Achromatopsia (no color) | #757575 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #647C57
#647C57
oklch(55.7% 0.062 134.9)
- #81698D
#81698D
oklch(55.7% 0.061 314.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #647C57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sage #598556 ΔE 0.030
- Military Green #667C3E ΔE 0.032
- Muddy Green #657432 ΔE 0.044
- Swamp #698339 ΔE 0.048
- Grey Brown #7F7053 ΔE 0.049
- Slate Green #658D6D ΔE 0.051
- Dark Moss Green #606C38 ΔE 0.054
- Drab #828344 ΔE 0.055
Use #647C57 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.